Joint for tubing or pipes.



PATENTED AUG. 23, 1904.

D. & F. HURST.

V JOINT FOR TUBING 0R PIPES.

APPLICATION FILED DEC; 15. 1903.

2 SHEETS-SHEBT 1.

N0 MODEL.

PATENTED AUG. 23, 1904 D. & P. HURST;

JOINT FOR TUBING 0R PIPES.

APPLICATION I'ILED DEC. 15, 1903.

2 SHEETS-SHEET 2- N0 MODEL.

Ilr

prur- IIII'IIIII' -11, III,

' UNITED STATES Patented August 23, 1904.

PATENT OFFICE.

JOINT FOR TUBING OR PIPES.

SPECIFICATION forming part of Letters.'Patent No. 768,228, dated August23, 1904. Application filed December 15, 1903. Serial No. 185,265. (Nomodel.)

To aIZZ w/wm it may concern:

Be it known that we, DANIEL HURST and FRANK HURST, subjects of the Kingof Great Britain, residing at London, England, have invented certain newand useful Improvements in Joints forTubing or Pipesy'and we do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in that kind of tube or pipejoint for which a British patent was granted to Daniel Hurst, dated the9th day of January, 1901, No. 568; and it consists of certain devicesfor facilitating the opening and closing of the joint.

In the joints described in the specification of the aforesaid patent thetwo parts of each joint are connected together by a kind of screw union,which is in some cases inconvenient to manipulate, especially when. as

often happens, the screw-threads of theunion become damaged by the roughwear and tear of use, so as to prevent the joint being used at all untilthe thread is repaired. Now according to our present invention wedispense with the screw union altogether and in place thereof employ thearrangements illustrated in the accompanying two sheets of drawings, inwhich Figure 1 is a longitudinal section of a joint constructed inaccordance with our invention and adapted for connecting together theends of hose-pipe, for example. Fig. 2 is a sectional end view of thesame, taken on line X X of Fig. 1. Fig.3 is an elevation correspondingto Fig. 1, but showing in section a modification of the lockingarrangement. Figs. 4: and 4* are longitudinal sections of modified formsand arrangements of the devices forming the joint; Fig. 5, a sectionalend view taken on the line Y Y, Fig. 4; and Fig. 6 is an elevationcorresponding to Fig. 4.

Similar letters of reference relate to like parts in all the figures of.the drawings.

We prefer to retain the truncated conical internalferrules described inthe specification of the aforesaid patent and place them in the ends ofthe tube or pipe to be joined projects a fillet Z6,

together, so that the said ends are flared out in the manner thereinshown.

In the drawings accompanying this specification, (0 6 represent the saidtruncated conical ferrules; 0 cl, the corresponding ends of the hose orother tube or pipe to be connected together, and ef the flared-out endsof same. Instead, however, of passing over the outside of theseflared-out ends 6 f of the tubes or pipes the two screwed hollowsleevesforming a screwed union, as shown and described in the specification ofthe aforesaid patent, we pass onto one of the said ends-e, for exampleahollow sleeve 9, provided with a socket 7t, and onto the other, f, ofthe said ends a hollow sleeve 2', provided with a flange or othersuitable projecting part or parts 1', adapted to enter the socket /t onthe end of the sleeve 9. From the bottom of the before-mentioned socketlb concentric with and parallel tobut at some little distance from thegeneral line of tube or pipe, and from the flange 7' projects a similarand corresponding fillet/ 0 In the annular space between these filletsand the ferrules a andb inside the pipe ends (which ferrules may be leftprojecting somewhat beyond the ends of the tubes or pipes, as seenclearly in Fig. 1) we place one or more india-rubber or other elasticpackingwashers Z. On the rim of the aforesaid socket it on one tube orpipe end is formed a snugm, behind which the flange j on the other tubeor pipe end can be placed, as shown in Fig. 1, and diametricallyopposite to the snug m is provided a screwed bolt n, hinged at p to theflange j and taking in to a notch q in the socket it, so as not toproject beyond the periphery of the latter when closed into the positionshown in Fig. 1. By means of this screwed bolt n the flange 7' on theone tube or pipe end can be forcibly drawn into the socket it on theother tube or pipe end by screwing up the nut so as to squeeze theindia-rubber or other elastic washer Z between them, and so make a tightjoint. Pressure may also be applied to the other side of the flange j bymeans of a set-screw s, tapped into the snug m on the socket it.

Instead of the hinged screwed bolt 12, Figs.

1 and 2, we sometimes employ a spring-catch t, as shown in Fig. 3. Thiscatch is preferably fixed to the socket h and lies in a notch q in theside thereof, the free end of the catch projecting inward, as shown, soas to take over the edge of the flange when it is pressed into thesocket it far enough to clear the point of the said catch.

In the modification shown in Figs. 4, 5, and 6 spring-catches only areemployed to hold the flange j in the socket h. In this case thespring-catches t are hinged at a to lugs 11 formed on the socket it, andtheir points w are constantly pressed radially inward by means ofsprings m. It will be understood that in this case it is only necessaryto press the flange j far enough into the socket /1 to clear the pointsof the catches if, when such points take over the flange and lock it inposition. When it is desired to open the joint, it is only necessary toturn the catches t outward into the position shown in dotted lines, Fig.4:, and the flange j can then be drawn out of the socket /L.

In the modification shown in Figs. f, 5, and 6 the flange y', fillets,and elastic jointingwasher may all be arranged as shown in Fig. 1;but,if preferredthe flange] may have added to it a socket-like part y,which takes the place of the fillet it in Fig. 1, but passes in betweena fillet 2 on aflange 1 of the truncated conical ferrule a and the innerwall of the socket it, suitable india-rubber or other elasticjointingwashers 2 and 3 being placed, as shown, for the purpose ofmaking a liquid-tight joint between the two tube or pipe ends.

It will be obvious that the screwed bolt u may be hinged to the socketit or other part of the joint instead of to the flange j, if preferred,and that the catch or catches 26 may be fixed or hinged to the flange 7'or other part of the joint instead of to the socket h, if preferred.

By the above-described arrangements the screw coupling is dispensed withand the coupling and uncoupling is greatly facilitated, while there needbe no part protruding laterally from the joint except the socket 72 andin the arrangement shown in Figs. 4, 5, and 6 the lugs c, all of whichparts may be made quite smooth externally, and therefore not liable tocatch in obstacles. as do the projecting wings or studs of ordinaryscrew unions.

Our improved joint is specially applicable for jointing togetherfire-hose or other flexible piping; but it may be en'iployed forcoupling together other more or less rigid tubes or pipes.

In some cases the truncated conical ferrules (1/ 7) may be dispensedwith and the hose or other flexible piping e (Z be wired onto theexterior of the sleeves y f, as illustrated. for example, in Fig. 1.

\Ve claim 1. The improved joint for tubing or pipes which consists of ahollow sleeve r in which is fixed the end of one tube or pipe by meausofa truncated conical ferrule a, the said sleeve 9 havinga socket li; ahollow sleeve i in which is fixed the end of the other tube or pipe bymeans of a truncated conical ferrule (I, the said sleeve 5 having aflange fitting into the socket l; elastic jointing material placedbetween said flange and the bottom of said socket; and means forsecuring the parts together, substantially as described with referenceto the accompanying drawings.

2. In a joint for tubing or pipes consisting of a hollow socketed sleevea flanged sleeve i, truncated conical ferrules and b and elastic joiningmaterial, the means for securing the parts together, which consist ofone or more catches connected to one part and taking over and lockingthe other part, substantially as described.

3. In a joint for tubing or pipes consisting of a hollow socketed sleeveg, a flanged sleeve i, and truncated conical ferrules u and l), thecombination with the socket l1 and flange j o f fillets on said socketand flange, and elastic jointing material placed between the saidlillets and the projecting parts of the. said truncated conicalferrules, substantially as described.

st. In a joint for tubing or pipes consisting of a hollow socketedsleeve r a flanged sleeve vi, and truncated conical ferrules a and I,the combination with the flange j and the truncated conical ferrule 11of fillets, and elastic jointing material placed between the saidlillets and the said truncated conical ferrules, substantially asdescribed.

In witness whereof we have hercun to set our hands in presence of twowitnesses.

DANIEL H U h S'l. FRANK ll U HST.

\Vitnesses:

S'riarnnN EDWARD (iUxroN, \VILLIAM Axnunsox Snrrn.

